频率域航空电磁法浅层水资源调查的试验研究

用航空电磁法进行浅层水资源调查的试验研究,并取得显著成效,在我国还是首次。本文简述了该方法的地质、地球物理前提与技术条件。并指出,HDY-3型双频航空电磁系统,用中比例尺进行航测,在平原的“有咸水”水文地质分区中,圈定咸水、淡水、半咸水,是一种快速、经济而有效的新的水文物探手段。该方法不但能划分咸、淡水及半咸水的界线,还能预测淡水的相对富水程度、研究古沉积环境和土壤粒度。文中还讨论了充实和改进该方法的途径。

INVESTIGATION OF SHALLOW WATER RESOURCES USING FREQUENCY DOMAIN AEROELECTROMA-GNETIC METHOD

The first performance of Frequency Domain Aeroelectromagnetic method (FAEM) for investigating shallow water resources in China came to the success.The geological and geophysical prerequests of FAEM are briefly described,with the technical conditions discussed.It is pointed out that medium scale aeroelectroma;jnetic survey using HDY-3 dual-frequency system is a rapid,economic and effective rechniqut to map saline water,fresh water and brackish water.FAEM can also be used to investigate the relative abundance of fresh water,paleosedimentary environment and soil grain-size.And the way for improving the FAEM method is discussed.